Step 163: add telemetry and crash logging

editor/tests/step163_test.cpp

@@ -0,0 +1,50 @@
+// Step 163 TDD Test: Telemetry opt-in logging
+#include "Telemetry.h"
+#include <iostream>
+#include <filesystem>
+#include <fstream>
+
+static void expect(bool cond, const std::string& name, int& passed, int& failed) {
+    if (cond) {
+        std::cout << "Test " << (passed + failed + 1) << " PASS: " << name << "\n";
+        ++passed;
+    } else {
+        std::cout << "Test " << (passed + failed + 1) << " FAIL: " << name << "\n";
+        ++failed;
+    }
+}
+
+static std::string readFile(const std::string& path) {
+    std::ifstream in(path);
+    if (!in.is_open()) return "";
+    std::ostringstream ss;
+    ss << in.rdbuf();
+    return ss.str();
+}
+
+int main() {
+    int passed = 0;
+    int failed = 0;
+
+    namespace fs = std::filesystem;
+    fs::path root = fs::temp_directory_path() / "whetstone_telemetry_test";
+    fs::create_directories(root);
+
+    Telemetry telemetry;
+    telemetry.initialize(root.string(), false);
+    telemetry.recordEvent("nope", json::object());
+    expect(!fs::exists(root / "telemetry.log"), "opt-out no log", passed, failed);
+
+    Telemetry telemetry2;
+    telemetry2.initialize(root.string(), true);
+    telemetry2.recordEvent("test_event", json::object());
+    auto logPath = root / "telemetry.log";
+    expect(fs::exists(logPath), "log written", passed, failed);
+    std::string content = readFile(logPath.string());
+    expect(content.find("test_event") != std::string::npos,
+           "event recorded", passed, failed);
+
+    std::cout << "\n=== Step 163 Results: " << passed << " passed, "
+              << failed << " failed ===\n";
+    return failed == 0 ? 0 : 1;
+}